Add defaults for manta

Change-Id: I8784a126b02e3e6618ac845a32a894ceb58ea39e

java/res/values/keypress-vibration-durations.xml

@@ -23,5 +23,6 @@
         <item>herring,5</item>
         <item>tuna,5</item>
         <item>mako,20</item>
+        <item>manta,16</item>
     </string-array>
 </resources>

java/res/values/keypress-volumes.xml

@@ -25,5 +25,6 @@
         <item>stingray,0.4</item>
         <item>grouper,0.3</item>
         <item>mako,0.3</item>
+        <item>manta,0.2</item>
     </string-array>
 </resources>